The setting is nominally the Land of a Thousand Towers* (from Anomalous Subsurface Environment) with a bit of changes.
A land where evil sorcerers rule city-states with iron fists long after climate change, super-science, and 'magic' warped and ruined the world. Your home base is Denethix* a mecca for civilization and technology, or one of the surrounding villages ruled by a benevolent Arch-Wizard of such immense power that none of the other evil wizards dare attack them.
You can read (far too much) more information in the Gods & Setting document:
https://docs.google.com/docume...Xu2C6daR0vDRdwo8Cioc
I'm still working on fleshing that out, but it gives a lot of info on the gods and races right by which other parts of the setting can be inferred.
As to what you're doing, for a bit longer explanation see the game info. The short of it: you're seasoned Real Estate Recovery Technicians sub-contracted by Vault Ventures to locate if necessary (maps aren't great) and evict any unlawful tenants from their properties Which translates to you're given the general location and identifying description or number of a building or dungeon to go clear out, and paid for it on top of anything you recover.
As it's a 'sandbox' you can certainly go off on your own endeavors if you prefer.
*I may change names to make it a bit more my own, but haven't come up with anything I like better yet.